AD9644

RECOMMENDED FOR NEW DESIGNS

14-Bit, 80 MSPS/155 MSPS, 1.8V Dual, Serial Output A/D Converter

Data Sheet (Rev. D) Product Selection Table

Part Models: 6
1ku List Price: Starting From $40.13

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Overview

JESD204A coded serial digital outputs
SNR = 73.7 dBFS at 70 MHz and 80 MSPS
SNR = 71.7 dBFS at 70 MHz and 155 MSPS
SFDR = 92 dBc at 70 MHz and 80 MSPS
SFDR = 92 dBc at 70 MHz and 155 MSPS
Low power: 423 mW at 80 MSPS, 567 mW at 155 MSPS
1.8 V supply operation

IF sampling frequencies to 250 MHz
Integer 1-to-8 input clock divider
−148.6 dBFS/Hz input noise at 180 MHz and 80 MSPS
-150.3 dBFS/Hz input noise at 180 MHz and 155 MSPS
Please see data sheet for additional features

The AD9644 is a dual, 14-bit, analog-to-digital converter (ADC) with a high speed serial output interface and sampling speeds of either 80 MSPS or 155 MSPS.

The AD9644 is designed to support communications appli-cations where high performance, combined with low cost, small size, and versatility, is desired. The JESD204A high speed serial interface reduces board routing requirements and lowers pin count requirements for the receiving device.

The dual ADC core features a multistage, differential pipelined architecture with integrated output error correction logic. Each ADC features wide bandwidth differential sample-and-hold analog input amplifiers that support a variety of user-selectable input ranges. An integrated voltage reference eases design consid-erations. A duty cycle stabilizer is provided to compensate for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance.

By default, the ADC output data is routed directly to the two external JESD204A serial output ports. These outputs are at CML voltage levels. Two modes are supported such that output coded data is either sent through one data link or two. (L = 1; F = 4 or L = 2; F = 2). Independent synchronization inputs (DSYNC) are provided for each channel.

Flexible power-down options allow significant power savings, when desired.

Programming for setup and control is accomplished using a 3-wire SPI-compatible serial interface.

The AD9644 is available in a 48-lead LFCSP and is specified over the industrial temperature range of −40°C to +85°C.

This product is protected by a U.S. patent.

Applications

Communications
Diversity radio systems
Multimode digital receivers (3G and 4G)
GSM, EDGE, W-CDMA, LTE,
CDMA2000, WiMAX, TD-SCDMA
I/Q demodulation systems
Smart antenna systems
General-purpose software radios
Broadband data applications
Ultrasound equipment

Product Highlights

An on-chip PLL allows users to provide a single ADC sampling clock; the PLL multiplies the ADC sampling clock to produce the corresponding data rate clock.
The configurable JESD204A output block supports up to 1.6 Gbps per channel data rate when using a dedicated data link per ADC or 3.2 Gbps data rate when using a single shared data link for both ADCs.
Proprietary differential input that maintains excellent SNR performance for input frequencies up to 250 MHz.
Operation from a single 1.8 V power supply.
Standard serial port interface (SPI) that supports various product features and functions, such as data formatting (offset binary, twos complement, or gray coding), enabling the clock DCS, power-down, test modes, voltage reference mode, and serial output configuration.

Part Models: 6
1ku List Price: Starting From $40.13

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD9644BCPZ-155	48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9644BCPZ-80	48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9644BCPZRL7-155	48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9644BCPZRL7-80	48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9644CCPZ-80	48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD9644CCPZRL7-80	48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 9, 2021 - 20_0126 Conversion of Select Sizes LFCSP Products from Punched to Sawn and Transfer of Assembly Site to ASE Korea
		PCN20_0126_Form Qualification Results Summary Material_Report Detailed Change Description Package Outline Drawing Package Outline Drawing Qualification Results Summary Qualification Results Summary Qualification Results Summary Qualification Results Summary
AD9644BCPZ-155	PRODUCTION
AD9644BCPZ-80	PRODUCTION
AD9644BCPZRL7-155	PRODUCTION
AD9644BCPZRL7-80	PRODUCTION
AD9644CCPZ-80	PRODUCTION
AD9644CCPZRL7-80	PRODUCTION
Sep 13, 2017 - 16_0077 CANCELLED: Conversion of Select 4x4, 5x5, 6x6 and 7x7mm LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE Korea.
		PCN16_0077_Form Material_Report Detailed Parts List Detailed Parts List Package Outline Drawing Detailed Change Description Qualification Results Summary
AD9644BCPZ-155	PRODUCTION
AD9644BCPZ-80	PRODUCTION
AD9644BCPZRL7-155	PRODUCTION
AD9644BCPZRL7-80	PRODUCTION
AD9644CCPZ-80	PRODUCTION
AD9644CCPZRL7-80	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Clock ICs 6
AD9510	RECOMMENDED FOR NEW DESIGNS	1.2 GHz Clock Distribution IC, PLL Core, Dividers, Delay Adjust, Eight Outputs
AD9511	RECOMMENDED FOR NEW DESIGNS	1.2 GHz Clock Distribution IC, PLL Core, Dividers, Delay Adjust, Five Outputs
AD9512	RECOMMENDED FOR NEW DESIGNS	1.2 GHz Clock Distribution IC, Two 1.6 GHz Inputs, Dividers, Delay Adjust, Five Outputs
AD9513	RECOMMENDED FOR NEW DESIGNS	800 MHz Clock Distribution IC, Dividers, Delay Adjust, Three Outputs

AD9514	RECOMMENDED FOR NEW DESIGNS	1.6 GHz Clock Distribution IC, Dividers, Delay Adjust, Three Outputs
AD9515	RECOMMENDED FOR NEW DESIGNS	1.6 GHz Clock Distribution IC, Dividers, Delay Adjust, Two Outputs
Differential Amplifiers 4
ADA4937-2	RECOMMENDED FOR NEW DESIGNS	Ultralow Distortion Differential ADC Driver (Dual)
ADA4938-2	RECOMMENDED FOR NEW DESIGNS	Ultralow Distortion Differential ADC Driver (Dual)
ADL5561	RECOMMENDED FOR NEW DESIGNS	2.9 GHz Ultralow Distortion RF/IF Differential Amplifier
ADL5562	RECOMMENDED FOR NEW DESIGNS	3.3 GHz Ultralow Distortion RF/IF Differential Amplifier
Variable Gain Amplifiers (VGA) 2
AD8376	RECOMMENDED FOR NEW DESIGNS	Ultralow Distortion IF Dual VGA
AD8372	RECOMMENDED FOR NEW DESIGNS	41 dB Range, 1 dB Step Size, Programmable Dual VGA

Tools & Simulations

Virtual Eval - BETA

Virtual Eval is a web application to assist designers in product evaluation of ADCs, DACs, and other ADI products. Using detailed models on Analog’s servers, Virtual Eval simulates crucial part performance characteristics within seconds. Configure operating conditions such as input tones and external jitter, as well as device features like gain or digital down-conversion. Performance characteristics include noise, distortion, and resolution, FFTs, timing diagrams, response plots, and more.

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S-Parameter 2

ADIsimRF

ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

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Visual Analog

For designers who are selecting or evaluating high speed ADCs, VisualAnalog™ is a software package that combines a powerful set of simulation and data analysis tools with a user-friendly graphical interface.

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